Animate Artifact

Enchant artifact
As long as enchanted artifact isn't a creature, it's an artifact creature with power and toughness each equal to its mana value.

Animate Artifact has 13 printings, first in Unlimited Edition (1993). EDHREC ranks it #26,076 among Commander cards. It has 2 official rulings.

Legality

Cards that show up in the same decks on EDHREC.

2008-08-01: This card has been returned to its original functionality. If it is enchanting an artifact that's already a creature, it won't change its power and toughness.
2008-08-01: A noncreature permanent that turns into a creature can attack, and its {T} abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn't matter how long the permanent has been a creature.